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Detect user touch with GestureDetectorCompat

Android example to Detect user touch with GestureDetectorCompat:


MainActivity.java

package com.blogspot.android_er.androidgesturedetector;

import android.os.Bundle;
import android.support.v4.view.GestureDetectorCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

 private GestureDetectorCompat gestureDetectorCompat;
 TextView textInfo;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 textInfo = (TextView)findViewById(R.id.info);

 gestureDetectorCompat = new GestureDetectorCompat(
 this, new MySimpleOnGestureListener(textInfo));
 }

 @Override
 public boolean onTouchEvent(MotionEvent event) {
 gestureDetectorCompat.onTouchEvent(event);
 return super.onTouchEvent(event);
 }

 private class MySimpleOnGestureListener
 extends GestureDetector.SimpleOnGestureListener{

 TextView textView;


 public MySimpleOnGestureListener(TextView v) {
 super();
 textView = v;
 }

 @Override
 public boolean onSingleTapUp(MotionEvent e) {
 textView.append(" - onSingleTapUp -");
 return super.onSingleTapUp(e);
 }

 @Override
 public void onLongPress(MotionEvent e) {
 textView.append(" - onLongPress -");
 super.onLongPress(e);
 }

 @Override
 public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
 textView.append(" - onScroll -");
 return super.onScroll(e1, e2, distanceX, distanceY);
 }

 @Override
 public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
 textView.append(" - onFling -");
 return super.onFling(e1, e2, velocityX, velocityY);
 }

 @Override
 public void onShowPress(MotionEvent e) {
 textView.append(" - onShowPress -");
 super.onShowPress(e);
 }

 @Override
 public boolean onDown(MotionEvent e) {
 textView.append(" - onDown -");
 return super.onDown(e);
 }

 @Override
 public boolean onDoubleTap(MotionEvent e) {
 textView.append(" - onDoubleTap -");
 return super.onDoubleTap(e);
 }

 @Override
 public boolean onDoubleTapEvent(MotionEvent e) {
 textView.append(" - onDoubleTapEvent -");
 return super.onDoubleTapEvent(e);
 }

 @Override
 public boolean onSingleTapConfirmed(MotionEvent e) {
 textView.append(" - onSingleTapConfirmed -");
 return super.onSingleTapConfirmed(e);
 }

 @Override
 public boolean onContextClick(MotionEvent e) {
 textView.append(" - onContextClick -");
 return super.onContextClick(e);
 }
 }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
 
 android_layout_width="match_parent"
 android_layout_height="match_parent"
 android_padding="16dp"
 android_orientation="vertical"
 tools_context="com.blogspot.android_er.androidgesturedetector.MainActivity">

 <TextView
 android_layout_width="wrap_content"
 android_layout_height="wrap_content"
 android_layout_gravity="center_horizontal"
 android_autoLink="web"
 android_text="http://android-er.blogspot.com/"
 android_textStyle="bold" />

 <TextView
 android_id="@+id/info"
 android_layout_width="match_parent"
 android_layout_height="match_parent"
 android_gravity="bottom"
 android_textStyle="italic" />
</LinearLayout>